Paragraph 23

It shall be the duty of the manager of every mine in which a locomotive runs to make and secure the efficient carrying out of arrangements whereby every locomotive thereat is examined externally during every period of twenty-four hours during which the engine or motor has been run, by a competent person appointed by the manager for that purpose, and upon the completion of such an examination the person making it shall forthwith record and sign a full and accurate report thereof in a book provided by the owner of the mine for the purpose.

In relation to any locomotive in which the motive power is generated by an internal combustion engine, it shall be the duty of the manager to make and secure the efficient carrying out of arrangements whereby any protective device fitted to any exhaust opening of the engine is thoroughly cleaned, or a clean device is substituted, whenever necessary and in any event during every period of twenty-four hours during which the engine has been run or such longer period as the Minister may be notice served on the manager approve in relation to any such locomotive.